undefined method 'title' - ruby-on-rails

I'm getting an error on the show action when new guidelines are being added to my app. This is since I changed the show action to allow for custom routes...The new guideline is added to the database correctly...
My show action in guidelines_controller.rb is
def show
#guideline = Guideline.where(title: params[:title]).first
respond_to do |format|
format.html # show.html.erb
format.json { render json: #guideline }
end
end
model guidelines.rb is
attr_accessible :content, :hospital, :title, :user_id, :guideline_id, :specialty
show view is
<p>Title: <%= link_to #guideline.title, seeguideline_path(#guideline.title) %> </p
Error message is
console says...
Started POST "/guidelines" for 127.0.0.1 at 2013-02-22 17:07:29 +1100
Processing by GuidelinesController#create as HTML
Parameters: {"utf8"=>"✓", "authenticity_token"=>"bQKIkSb4Wzr46FERMbU82Q1qMzd3GrGNq6Nqmr0KNhY=", "guideline"=>{"title"=>"Stackoverflo", "specialty"=>"Dermatology", "hospital"=>"Stack Hospital", "content"=>"www.stackoverflow.com"}, "commit"=>"Create Guideline"}
User Load (0.3ms) SELECT "users".* FROM "users" WHERE "users"."id" = 11 LIMIT 1
(0.1ms) begin transaction
Guideline Exists (0.4ms) SELECT 1 AS one FROM "guidelines" WHERE (LOWER("guidelines"."hospital") = LOWER('Stack Hospital') AND "guidelines"."title" = 'Stackoverflo') LIMIT 1
SQL (65.0ms) INSERT INTO "guidelines" ("content", "created_at", "hospital", "specialty", "subtitle", "title", "updated_at", "user_id") VALUES (?, ?, ?, ?, ?, ?, ?, ?) [["content", "www.stackoverflow.com"], ["created_at", Fri, 22 Feb 2013 06:07:29 UTC +00:00], ["hospital", "Stack Hospital"], ["specialty", "Dermatology"], ["subtitle", nil], ["title", "Stackoverflo"], ["updated_at", Fri, 22 Feb 2013 06:07:29 UTC +00:00], ["user_id", 11]]
SOLR Request (152.5ms) [ path=#<RSolr::Client:0x007f9c79f2fc48> parameters={data: <?xml version="1.0" encoding="UTF-8"?><add><doc><field name="id">Guideline 35</field><field name="type">Guideline</field><field name="type">ActiveRecord::Base</field><field name="class_name">Guideline</field><field name="title_text">Stackoverflo</field></doc></add>, headers: {"Content-Type"=>"text/xml"}, method: post, params: {:wt=>:ruby}, query: wt=ruby, path: update, uri: http://localhost:8982/solr/update?wt=ruby, open_timeout: , read_timeout: } ]
(3.7ms) commit transaction
Redirected to http://localhost:3000/guidelines/35
SOLR Request (100.3ms) [ path=#<RSolr::Client:0x007f9c79f2fc48> parameters={data: <?xml version="1.0" encoding="UTF-8"?><commit/>, headers: {"Content-Type"=>"text/xml"}, method: post, params: {:wt=>:ruby}, query: wt=ruby, path: update, uri: http://localhost:8982/solr/update?wt=ruby, open_timeout: , read_timeout: } ]
Completed 302 Found in 485ms (ActiveRecord: 69.8ms)
Started GET "/guidelines/35" for 127.0.0.1 at 2013-02-22 17:07:30 +1100
Processing by GuidelinesController#show as HTML
Parameters: {"id"=>"35"}
Guideline Load (0.2ms) SELECT "guidelines".* FROM "guidelines" WHERE "guidelines"."id" = ? LIMIT 1 [["id", "35"]]
Guideline Load (0.2ms) SELECT "guidelines".* FROM "guidelines" WHERE "guidelines"."title" IS NULL LIMIT 1
Rendered guidelines/show.html.erb within layouts/application (18.3ms)
Completed 500 Internal Server Error in 83ms
ActionView::Template::Error (undefined method `title' for nil:NilClass):
6:
7: <div class="guideline span10">
8:
9: <p>Title: <%= link_to #guideline.title, seeguideline_path(#guideline.title) %> </p>
10: <strong> <a href="<%= #guideline.content %>", target = '_blank'>Link to guideline</a> </strong>
11: <p>Hospital Name: <%= #guideline.hospital %></p>
12:
app/views/guidelines/show.html.erb:9:in `_app_views_guidelines_show_html_erb__4234346501713687788_70155056040280'
app/controllers/guidelines_controller.rb:132:in `show'
route is
get '/:title', to: 'guidelines#show', as: :seeguideline

Are you sure your route is passing the :title param? What does your console log show for the SQL request for the query? I have a feeling your route isn't passing what you think it's passing...
Also, you're going to want to handle the case that the query comes back empty anyway. Having the app blow up probably isn't what you want.

Related

How to submit ajax form in Rails 6 with Webpack? Getting ActionController::InvalidAuthenticityToken error

all!
I am following along with the video on GoRails on how to make a chat application using action cable. In the video, I believe Rails 5 is being used, however, I wanted to try it out with Rails 6.
Everything was going great so far. Installed Bootstrap and jQuery and properly configured my environments.js file. It was awesome. Then I get to the part right before we add action cable, and we make the chatroom form remote: true.
I cannot figure out why my form is trying to still submit as HTML instead of JS. On top of that, I am getting an ActionController::InvalidAuthenticityToken error.
Here's how I have my form set up:
<%= simple_form_for [#chatroom, Message.new], remote: true, html: { id: 'message-input' } do |f| %>
<%= f.input :body, label: false, input_html: { rows: 1, autofocus: true } %>
<% end %>
When I submit, I get this error in my rails server:
Started POST "/chatrooms/1/messages" for ::1 at 2019-10-16 21:02:01 -0500
Processing by MessagesController#create as HTML
Parameters: {"message"=>{"body"=>"test3"}, "chatroom_id"=>"1"}
Can't verify CSRF token authenticity.
Completed 422 Unprocessable Entity in 1ms (ActiveRecord: 0.0ms | Allocations: 968)
ActionController::InvalidAuthenticityToken - ActionController::InvalidAuthenticityToken:
Started POST "/__better_errors/cf3c4e5c6fa2d1b1/variables" for ::1 at 2019-10-16 21:02:01 -0500
Not sure what to do. I've googled and came across this but I'm not sure if it's entirely applicable: Using Rails-UJS in JS modules (Rails 6 with webpacker)
Any help would be greatly appreciated!
So, it turns out I had to use form_with instead of form_for in order to get it to process as JS. I guess form_for is slowing being deprecated?
My form now looks like this:
<%= form_with(model: [#chatroom, Message.new]) do |f| %>
<%= f.text_field :body %>
<% end %>
and the output is what I was expecting with out having to submit the CSRF token with JS or skipping the before action in the controller.
Started POST "/chatrooms/1/messages" for ::1 at 2019-10-18 20:15:14 -0500
Processing by MessagesController#create as JS
Parameters: {"authenticity_token"=>"xPBQ+4LOS5aMa7PQ3HEGXAMX6wIIEfQ0Izy/xUqUtleK4mB18IYxC4mOcIoiS5M+FGm6J/WEYMdbM4IVPojScw==", "message"=>{"body"=>"test 5"}, "chatroom_id"=>"1"}
User Load (0.8ms) SELECT "users".* FROM "users" WHERE "users"."id" = $1 ORDER BY "users"."id" ASC LIMIT $2 [["id", 1], ["LIMIT", 1]]
Chatroom Load (0.3ms) SELECT "chatrooms".* FROM "chatrooms" WHERE "chatrooms"."id" = $1 LIMIT $2 [["id", 1], ["LIMIT", 1]]
↳ app/controllers/messages_controller.rb:19:in `set_chatroom'
(0.1ms) BEGIN
↳ app/controllers/messages_controller.rb:12:in `create'
Message Create (0.7ms) INSERT INTO "messages" ("chatroom_id", "user_id", "body", "created_at", "updated_at") VALUES ($1, $2, $3, $4, $5) RETURNING "id" [["chatroom_id", 1], ["user_id", 1], ["body", "test 5"], ["created_at", "2019-10-19 01:15:14.619853"], ["updated_at", "2019-10-19 01:15:14.619853"]]
↳ app/controllers/messages_controller.rb:12:in `create'
(5.6ms) COMMIT
↳ app/controllers/messages_controller.rb:12:in `create'
Redirected to http://localhost:3000/chatrooms/1
Completed 200 OK in 17ms (ActiveRecord: 7.6ms | Allocations: 4690)
When requesting POST requests rails does authenticity_token check.
In your request from javascript, you'll need to add a header: 'X-CSRF-Token': csrfToken.
You can get csrfToken with the following JS:
const csrfToken = document.querySelector('[name="csrf-token"]').getAttribute('content');
Another solution is to disable verify_authenticity_token, you can add this to your application_controller.rb to disable it or you can add it to controller specific:
skip_before_action :verify_authenticity_token

Rails 5 accepts_nested_attributes_for unpermitted parameter error? (React front end)

I have looked at previous SO solutions on accepts_nested_attributes here and here, but I am still getting the error. I am using React as front end and Rails back end. I am trying to create a request to be sent to schedules, and from there to populate to workers.
I am using Rails 5.0.2. I have a schedule, worker, roster models.
//Schedule
has_many :workers, through: :rosters, dependent: :destroy
has_many :rosters
accepts_nested_attributes_for :workers #implement accept_nested_attributes here
//Roster
belongs_to :schedule
belongs_to :worker
//Worker
has_many :schedules, through: :rosters
has_many :rosters
And here is my Schedule controller:
def create
#schedule = Schedule.new(schedule_params)
if #schedule.save
render json: #schedule
else
render json: #schedule, status: :unprocessable_entity
end
end
...
private
def schedule_params
params.permit(:date, :user_id, :workers_attributes => [:worker_id, :name, :phone])
end
Here is the error that I got:
app/controllers/schedules_controller.rb:13:in `create'
Started POST "/api/schedules" for 127.0.0.1 at 2017-05-23 10:30:38 -0700
Processing by SchedulesController#create as */*
Parameters: {"date"=>"2017-05-25T02:00:00.000Z", "user_id"=>1, "workers_attributes"=>{"name"=>"Iggy Test", "phone"=>"1
23-456-7890"}, "schedule"=>{"date"=>"2017-05-25T02:00:00.000Z", "user_id"=>1}}
Unpermitted parameter: schedule
Completed 500 Internal Server Error in 15ms (ActiveRecord: 0.0ms)
TypeError (no implicit conversion of Symbol into Integer):
app/controllers/schedules_controller.rb:13:in `create'
Why is my request shows Unpermitted parameter schedule? If I remove workers_attributes and only have params.permit(:date, :user_id), it works. I can't figure out why the error points to schedule. How can I make successful POST nested_attributes request to rails?
I am using fetch to do POST request from react side:
...
return fetch(`api/schedules`, {
method: 'POST',
headers: {
'Content-Type': 'application/json',
},
body: JSON.stringify({
date: date,
user_id: 1,
workers_attributes: {name: "Iggy Test", phone: "123-456-7890"}
})
EDIT:
After following answer from #gabrielhilal, I added require(): params.require(:schedule).permit(:date, :user_id, :workers_attributes => [:id, :name, :phone]), and edited the fetch POST on React's end to have array of objects instead of plain objects: workers_attributes: [{name: "Iggy Test", phone: "123-456-7890"}]. It does not complain anymore, and it does register new schedule. However, new workers are all nil:
#Worker.last shows:
#<Worker id: 32, name: nil, phone: nil, created_at: "2017-05-23 19:36:09", updated_at: "2017-05-23 19:36:09">
Sorry, don't mean to create nested question, but does anyone know why it is nil?
EDIT 2:
I got it to work, sort of.
If I have
def create
#schedule = Schedule.new(schedule_params)
#workers = #schedule.rosters.build.build_worker
...
and
//schedule_params
params.permit(:date, :user_id, :workers_attributes => [:id, :name, :pho
ne])
I was able to have "Iggy Test" to display, but it immediately creates another nil worker.
Log:
Started POST "/api/schedules" for 127.0.0.1 at 2017-05-23 20:42:38 -0700
Processing by SchedulesController#create as */*
Parameters: {"date"=>"2017-05-26T02:00:00.000Z", "user_id"=>1, "workers_attributes"=>[{"name"=>"Iggy Test", "phone"=>"
123-456-7890"}], "schedule"=>{"date"=>"2017-05-26T02:00:00.000Z", "user_id"=>1}}
Unpermitted parameter: schedule
(0.1ms) begin transaction
User Load (0.3ms) SELECT "users".* FROM "users" WHERE "users"."id" = ? LIMIT ? [["id", 1], ["LIMIT", 1]]
SQL (1.1ms) INSERT INTO "schedules" ("date", "created_at", "updated_at", "user_id") VALUES (?, ?, ?, ?) [["date", 20
17-05-26 02:00:00 UTC], ["created_at", 2017-05-24 03:42:38 UTC], ["updated_at", 2017-05-24 03:42:38 UTC], ["user_id", 1]
]
SQL (0.2ms) INSERT INTO "workers" ("name", "phone", "created_at", "updated_at") VALUES (?, ?, ?, ?) [["name", "Iggy
Test"], ["phone", "123-456-7890"], ["created_at", 2017-05-24 03:42:38 UTC], ["updated_at", 2017-05-24 03:42:38 UTC]]
SQL (0.2ms) INSERT INTO "rosters" ("worker_id", "created_at", "updated_at") VALUES (?, ?, ?) [["worker_id", 56], ["c
reated_at", 2017-05-24 03:42:38 UTC], ["updated_at", 2017-05-24 03:42:38 UTC]]
SQL (0.1ms) INSERT INTO "workers" ("created_at", "updated_at") VALUES (?, ?) [["created_at", 2017-05-24 03:42:38 UTC
], ["updated_at", 2017-05-24 03:42:38 UTC]]
SQL (0.6ms) INSERT INTO "rosters" ("schedule_id", "worker_id", "created_at", "updated_at") VALUES (?, ?, ?, ?) [["sc
hedule_id", 52], ["worker_id", 57], ["created_at", 2017-05-24 03:42:38 UTC], ["updated_at", 2017-05-24 03:42:38 UTC]]
SQL (0.4ms) UPDATE "rosters" SET "schedule_id" = ?, "updated_at" = ? WHERE "rosters"."id" = ? [["schedule_id", 52],
["updated_at", 2017-05-24 03:42:38 UTC], ["id", 52]]
(5.6ms) commit transaction
Completed 200 OK in 417ms (Views: 6.9ms | ActiveRecord: 14.7ms)
If I modified params to have require(:schedule)
params.require(:schedule).permit(:date, :user_id, :workers_attributes => [:id, :name, :phone])
It creates a nil worker only.
Log:
Started POST "/api/schedules" for 127.0.0.1 at 2017-05-23 20:45:03 -0700
Processing by SchedulesController#create as */*
  Parameters: {"date"=>"2017-05-26T02:00:00.000Z", "user_id"=>1, "workers_attributes"=>[{"name"=>"Iggy Test", "phone"=>"
123-456-7890"}], "schedule"=>{"date"=>"2017-05-26T02:00:00.000Z", "user_id"=>1}}
   (0.1ms)  begin transaction
  User Load (0.3ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = ? LIMIT ?  [["id", 1], ["LIMIT", 1]]
  SQL (0.4ms)  INSERT INTO "schedules" ("date", "created_at", "updated_at", "user_id") VALUES (?, ?, ?, ?)  [["date", 20
17-05-26 02:00:00 UTC], ["created_at", 2017-05-24 03:45:03 UTC], ["updated_at", 2017-05-24 03:45:03 UTC], ["user_id", 1]
]
  SQL (0.2ms)  INSERT INTO "workers" ("created_at", "updated_at") VALUES (?, ?)  [["created_at", 2017-05-24 03:45:03 UTC
], ["updated_at", 2017-05-24 03:45:03 UTC]]
  SQL (0.3ms)  INSERT INTO "rosters" ("schedule_id", "worker_id", "created_at", "updated_at") VALUES (?, ?, ?, ?)  [["sc
hedule_id", 53], ["worker_id", 58], ["created_at", 2017-05-24 03:45:03 UTC], ["updated_at", 2017-05-24 03:45:03 UTC]]
   (2.4ms)  commit transaction
Completed 200 OK in 81ms (Views: 1.3ms | ActiveRecord: 8.3ms)
Your post:
{
"date"=>"2017-05-25T02:00:00.000Z",
"user_id"=>1,
"workers_attributes"=>{
"name"=>"Iggy Test",
"phone"=>"123-456-7890"
},
"schedule"=> {
"date"=>"2017-05-25T02:00:00.000Z",
"user_id"=>1
}
}
You have two issues:
schedule is not permitted (that's why you see the message in the logs), but it will be just ignored anyway (won't raise any error).
the workers_attributes should be a collection of workers and not a simple hash, so that's why you are having the error.
You should get something like the following in the post request:
{
"date"=>"2017-05-25T02:00:00.000Z",
"user_id"=>1,
"workers_attributes"=>{
"0" => {
"name"=>"Iggy Test",
"phone"=>"123-456-7890"
}
}
}

Unpermitted parameters when uploading image with tinymce

I'm using tinymce-rails-image-upload to upload images with paperclip (following this demo-app). When I try to upload an image I'm getting an 'umpermitted parameters' reminder and the image doesn't upload. The upload modal shows 'Got a bad response from server':
Processing by TinymceAssetsController#create as HTML
Parameters: {"utf8"=>"✓", "authenticity_token"=>"auth token", "hint"=>"", "file"=>#<ActionDispatch::Http::UploadedFile:0x000001025a2780 #tempfile=# <File:/var/folders/t4/86vsrmds42j84r36kwpng7k00000gn/T/RackMultipart20150207- 12522-9rj6xq>, #original_filename="applecash.jpg", #content_type="image/jpeg", #headers="Content-Disposition: form-data; name=\"file\"; filename=\"applecash.jpg\"\r\nContent-Type: image/jpeg\r\n">, "alt"=>""}
Command :: identify -format '%wx%h,%[exif:orientation]' '/var/folders/t4/86vsrmds42j84r36kwpng7k00000gn/T/RackMultipart20150207-12522-9rj6xq[0]' 2>/dev/null
Unpermitted parameters: utf8, authenticity_token
(0.1ms) begin transaction
Question Load (0.5ms) SELECT "questions".* FROM "questions" WHERE (questions.position IS NOT NULL) AND (1 = 1) ORDER BY questions.position DESC LIMIT 1
Binary data inserted for `string` type on column `file_content_type`
SQL (0.8ms) INSERT INTO "questions" ("created_at", "file_content_type", "file_file_name", "file_file_size", "file_updated_at", "position", "updated_at") VALUES (?, ?, ?, ?, ?, ?, ?) [["created_at", Sun, 08 Feb 2015 18:35:07 UTC +00:00], ["file_content_type", "image/jpeg"], ["file_file_name", "timcook.jpg"], ["file_file_size", 120040], ["file_updated_at", Sun, 08 Feb 2015 18:35:07 UTC +00:00], ["position", 9], ["updated_at", Sun, 08 Feb 2015 18:35:07 UTC +00:00]]
(7.3ms) commit transaction
Completed 200 OK in 68ms (Views: 0.6ms | ActiveRecord: 8.7ms)
Here's the controller:
class TinymceAssetsController < ApplicationController
respond_to :json
def create
geometry = Paperclip::Geometry.from_file params[:file]
question = Question.create params.permit(:file, :alt, :hint)
render json: {
question: {
url: question.file.url,
height: geometry.height.to_i,
width: geometry.width.to_i
}
}, layout: false, content_type: "text/html"
end
end
and the question model:
class Question < ActiveRecord::Base
has_attached_file :file
end
and the view:
<%= simple_form_for [#comment, Question.new] do |f| %>
<%= f.text_area :body, :class => "tinymce", :rows => 10, :cols => 60 %>
<% end %>
<%= tinymce plugins: ["uploadimage"] %>
It's ok to not permit some of the parameters, so Unpermitted parameters: utf8, authenticity_token is a reminder, not an exception. I suggest you log what are question model instance errors:
question = Question.create params.permit(:file, :alt, :hint)
logger.debug question.errors.full_messages
May be wrong, but, you have the following:
question = Question.create params.permit(:file, :alt, :hint)
I think you'd just make that read like this and it would work:
question = Question.create params.permit(:file, :alt, :hint, :utf8, :authenticity_token)
The error is clear. You have not permitted those parameters. But they exist. You expressly permit the other three there so I presume you have to permit those two additional.
That's my guess and I'm sticking to it :).

Trouble splitting output of multiselect in Rails

I have a multiselect (using bootstrap-multiselect) in my #minisets new form that aims to associate #scales with the #miniset via the #sizes table.
The associations work fine. What I'm stuck on is how to loop through the multiple :scale_id submissions from the multiselect and create lines in the #sizes table for them all.
Following this answer I have been trying to use split and then loop the create but I think the fact that that answer pertains to a HABTM relationship and mine is has_many_through means I need a different solution?
In my minisets controller I have
def new
#miniset = Miniset.new
#miniset.sizes.build
end
def create
#miniset = Miniset.new(miniset_params)
if #miniset.save
params[:scale_id].split(',').each do |id|
#miniset.sizes.create(params[:sizes_attributes])
end
redirect_to #miniset
else
render 'new'
end
end
private
def miniset_params
params.require(:miniset).permit(:name, :release_date, :material, :pcode, :notes, :quantity, :random, productions_attributes: [:id, :manufacturer_id, :miniset_id], sizes_attributes: [:id, :scale_id, :miniset_id], sculptings_attributes: [:id, :sculptor_id, :miniset_id])
end
end
In my view I have
<%= f.fields_for :sizes do |size_fields| %>
<%= size_fields.label :scale_id, simple_pluralize(#miniset.scales.count, 'Scale') %>
<%= size_fields.select :scale_id,
options_from_collection_for_select(Scale.all, :id, :name, #miniset.scales.map(&:id)),
{},
{class: 'multiselect', multiple: true} %>
<% end %>
<script type="text/javascript">
$(document).ready(function() {
$('.multiselect').multiselect();
});
</script>
I'm currently getting error undefined methodsplit' for nil:NilClass` when I submit.
I think that may be because the log shows an empty scale_id passed before the two filled ones and split won't accept nil? Here is the log when submitting TWO scales.
Started POST "/minisets" for 127.0.0.1 at 2014-01-30 10:49:59 +0000
Processing by MinisetsController#create as HTML
Parameters: {"utf8"=>"✓", "authenticity_token"=>"R0RxDMwB5/ytSb5qgjIlVR5as0/DTkstgFMDXcefDnc=", "miniset"=>{"name"=>"Test for size", "quantity"=>"10", "random"=>"0", "material"=>"Hard Plastic", "sizes_attributes"=>{"0"=>{"scale_id"=>["", "1", "5"]}}, "pcode"=>"", "release_date(1i)"=>"", "release_date(2i)"=>"", "release_date(3i)"=>"", "notes"=>""}, "Set Scale"=>{"#<ActiveRecord::Associations::CollectionProxy::ActiveRecord_Associations_CollectionProxy_Size:0x007fcf643c29f0>"=>""}, "commit"=>"Add set"}
User Load (0.2ms) SELECT "users".* FROM "users" WHERE "users"."remember_token" = 'd59f28d384d62b71719dd845b4e5353cdd993016' LIMIT 1
Unpermitted parameters: scale_id
SQL (0.9ms) INSERT INTO "minisets" ("created_at", "material", "name", "notes", "pcode", "quantity", "updated_at") VALUES (?, ?, ?, ?, ?, ?, ?) [["created_at", Thu, 30 Jan 2014 10:49:59 UTC +00:00], ["material", "Hard Plastic"], ["name", "Test For Size"], ["notes", ""], ["pcode", ""], ["quantity", 10], ["updated_at", Thu, 30 Jan 2014 10:49:59 UTC +00:00]]
SQL (0.6ms) INSERT INTO "sizes" ("created_at", "miniset_id", "updated_at") VALUES (?, ?, ?) [["created_at", Thu, 30 Jan 2014 10:49:59 UTC +00:00], ["miniset_id", 41], ["updated_at", Thu, 30 Jan 2014 10:49:59 UTC +00:00]]
(4.2ms) commit transaction
Completed 500 Internal Server Error in 153ms
NoMethodError (undefined method `split' for nil:NilClass):
app/controllers/minisets_controller.rb:19:in `create'
I'm sure what I have after the split is incorrect but I can't play with it until the split works. I can get rid of the error by adding to_s before the split but I get no better results.
Been making very slow progress on this multiselect for days now so any help very much appreciated.
Thanks to this fantastic youtube video I solved my problem.
My form:
<%= f.fields_for(#size) do |sf| %>
<%= sf.label simple_pluralize(#miniset.scales.count, 'Scale') %>
<%= collection_select( :scales, :id, #all_scales, :id, :name,
{},
{class: 'multiselect', multiple: true}) %>
<% end %>
In my minisets_controller I have the following new and create actions:
def new
#miniset = Miniset.new
#all_scales = Scale.all
#size = #miniset.sizes.build
end
def create
#miniset = Miniset.new(miniset_params)
params[:scales][:id].each do |scale|
if !scale.empty?
#miniset.sizes.build(:scale_id => scale)
end
end
if #miniset.save
redirect_to #miniset
else
render 'new'
end
end
It works perfectly. If anyone else is having the same problem, trying to get multiselects to work in rails with has_many_through, I recommend watching that video. So pleased.

Create then Update - Rails

I have a set of parameters below that are submitted through a form
Parameters: {"utf8"=>"✓", "authenticity_token"=>"pyMkh1eJ7WxYC978XKjdsyGOeGDvi6RTIOSGb9KMqkc=", "link"=>{"category_id"=>"1", "comment"=>"", "url"=>"yahoo.com "}, "type"=>"html", "original_url"=>"http://yahoo.com", "url"=>"http://www.yahoo.com/", "title"=>"Yahoo!", "description"=>"Welcome to Yahoo!, the world's most visited home page. Quickly find what you're searching for, get in touch with friends and stay in-the-know with the latest news and information.", "favicon_url"=>"http://www.yahoo.com/favicon.ico", "provider_url"=>"http://www.yahoo.com", "provider_display"=>"www.yahoo.com", "provider_name"=>"Yahoo", "safe"=>"true", "html"=>"", "thumbnail_url"=>"", "object_type"=>"link", "image_url"=>"", "category_id"=>"1"}
I want to create a new "links" record in the links model, which belongs to the categories model. My "create" action in the links controller looks like this
def create
#category = Category.find_by_id(params[:category_id])
#link = #category.links.build(params[:link])
#link.user_id = current_user.id
respond_to do |format|
if #link.save
links_attributes = params.slice(:original_url, :title, :description, :favicon_url, :provider_url, :provider_display, :thumbnail_url, :object_type)
#link.update_attributes(links_attributes)
else
end
end
end
If I just did #link.save without the update attributes, it only saves comment, url and category id. However, the above creates 2 records, one comment, url and category_id and another with all of the data.
How can I make sure this creates just one record, with all of the information?
UPDATE
If I could just create the record with the 3 parameters, then update it with the remaining parameters (links_attributes), I would be fine with that...just not sure how to do it.
This is the output I get when submitting:
Started POST "/categories/1/links" for 127.0.0.1 at 2013-01-11 12:43:44 -0500
Processing by LinksController#create as JS
Parameters: {"utf8"=>"✓", "authenticity_token"=>"pyMkh1eJ7WxYC978XKjdsyGOeGDvi6RTIOSGb9KMqkc=", "link"=>{"category_id"=>"1", "comment"=>"", "url"=>"bloomberg.com "}, "type"=>"html", "original_url"=>"http://bloomberg.com", "url"=>"http://www.bloomberg.com/", "title"=>"Business, Financial & Economic News, Stock Quotes", "description"=>"Bloomberg is a premier site for business and financial market news. It delivers world economic news, stock futures, stock quotes, & personal finance advice.", "favicon_url"=>"http://www.bloomberg.com/favicon.ico", "provider_url"=>"http://www.bloomberg.com", "provider_display"=>"www.bloomberg.com", "provider_name"=>"Bloomberg", "safe"=>"true", "html"=>"", "thumbnail_url"=>"http://www.bloomberg.com/image/is2KySnyVWmA.jpg", "object_type"=>"link", "image_url"=>"", "category_id"=>"1"}
User Load (0.1ms) SELECT "users".* FROM "users" WHERE "users"."id" = ? LIMIT 1 [["id", 1]]
(0.1ms) begin transaction
SQL (0.4ms) INSERT INTO "links" ("category_id", "comment", "created_at", "description", "favicon_url", "object_type", "original_url", "points", "profile_link", "provider_display", "provider_url", "thumbnail", "thumbnail_url", "title", "updated_at", "url", "user_id") VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?) [["category_id", "1"], ["comment", ""], ["created_at", Fri, 11 Jan 2013 17:43:
Started POST "/categories/1/links" for 127.0.0.1 at 2013-01-11 12:43:44 -0500
Processing by LinksController#create as JS
Parameters: {"utf8"=>"✓", "authenticity_token"=>"pyMkh1eJ7WxYC978XKjdsyGOeGDvi6RTIOSGb9KMqkc=", "link"=>{"category_id"=>"1", "comment"=>"", "url"=>""}, "commit"=>"Post", "category_id"=>"1"}
User Load (0.1ms) SELECT "users".* FROM "users" WHERE "users"."id" = ? LIMIT 1 [["id", 1]]
(0.1ms) begin transaction
SQL (0.4ms) INSE44 UTC +00:00], ["description", "Bloomberg is a premier site for business and financial market news. It delivers world economic news, stock futures, stock quotes, & personal finance advice."], ["favicon_url", "http://www.bloomberg.com/favicon.ico"], ["object_type", "link"], ["original_url", "http://bloomberg.com"], ["points", nil], ["profile_link", nil], ["provider_display", "www.bloomberg.com"], ["provider_url", "http://www.bloomberg.com"], ["thumbnail", nil], ["thumbnail_url", "http://www.bloomberg.com/imRT INTO "links" ("category_id", "comment", "created_at", "description", "favicon_url", "object_type", "original_url", "points", "profile_link", "provider_display", "provider_url", "thumbnail", "thumbnail_url", "title", "updated_at", "url", "user_id") VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?) [["category_id", "1"], ["comment", ""], ["created_at", Fri, 11 Jan 2013 17:43:44 UTC +00:00], ["description", nil], ["favicon_url", nil], ["object_type", nil], ["original_url", nil], ["points", nil], ["profile_link", nil], ["provider_display", nil], ["provider_url", nil], ["thumbnail", nil], ["thumbnail_url", nil], ["title", nil], ["updated_at", Fri, 11 Jan 2013 17:43:44 UTC +00:00], ["url", ""], ["user_id", 1]]
(1.1ms) commit transaction
Rendered links/create.js.erb (0.0ms)
Completed 200 OK in 8ms (Views: 3.9ms | ActiveRecord: 1.6ms)
age/is2KySnyVWmA.jpg"], ["title", "Business, Financial & Economic News, Stock Quotes"], ["updated_at", Fri, 11 Jan 2013 17:43:44 UTC +00:00], ["url", "bloomberg.com "], ["user_id", 1]]
(2.5ms) commit transaction
Rendered links/create.js.erb (0.0ms)
This is my form:
<%= form_for([#category, #category.links.build], :remote => true, :class => "form-horizontal") do |f| %>
<%= f.hidden_field :category_id, :value => params[:id] %>
Comment: <%= f.text_field :comment %><BR>
Link: <%= f.text_field :url %>
<%= f.submit "Post", :class => "btn", :disable_with => '...', :id => "new_link_button" %>
<% end %>
<div class="selector" style="width:350px;margin:-30px 0px 0px 0px;"></div>
<!-- Placeholder that tells Preview where to put the loading icon-->
<div class="loading">
<img src='http://embedly.github.com/jquery-preview/images/loading-rectangle.gif'>
</div>
<script>
$('#link_url').preview({ key:'60f1dcdf3258476794784148a6eb65e7', // Sign up for a key: http://embed.ly/pricing
selector : {type:'rich'},
preview : {
submit : function(e, data){
$.ajax({
dataType: 'script',
url: this.form.attr('action'),
type: 'POST',
data: data
});
},
},
autoplay : 0,
maxwidth : 350,
display : {display : 'rich'}
});
$('#new_link_button').click(function(e) {
e.preventdevault();
$('.new_link').submit();
return false;
});
</script>
This is my routes:
resources :categories, :only => [:new, :show, :create, :edit, :update] do
resources :links, :only => [:new, :show, :create, :edit, :update]
resources :industries, :only => [:new, :show, :create, :edit, :update]
resources :territories, :only => [:new, :show, :create, :edit, :update]
end
Try setting them before save.
def create
#link = Link.new(params[:link])
#link.category_id = params[:category_id]
#link.original_url = params[:original_url]
#link.title = params[:title]
#link.description = params[:description]
#link.user_id = current_user.id
# etc...
respond_to do |format|
if #link.save
# do things...
else
# do other things...
end
end
end
I think there's a problem with how your form is being constructed. As you can see in your posted parameters, params[:link] only includes a subset of the data you are trying to save on link:
"link"=>{"category_id"=>"1", "comment"=>"", "url"=>"yahoo.com "}
The rest is all at the top level of the params array:
Parameters: {... "original_url"=>"http://yahoo.com", "url"=>"http://www.yahoo.com/", "title"=>"Yahoo!", "description"=>"Welcome to Yahoo!..." ...}
You should look at how you're using form_for to construct your form, and make sure it's being used correctly for the additional parameters.
Edit:
If you can't edit the form, then you could do this in your controller:
#link.user_id = current_user.id
links_attributes = params.slice(:original_url, :title, :description, :favicon_url, :provider_url, :provider_display, :thumbnail_url, :object_type)
#link.attributes = links_attributes
respond_to do |format|
if #link.save
...
First of all, you don't need to call #link.save then #link.update_attributes, because #link.update_attributes would save #link in your db if it is not already there.
From the logs you posted, it seems your controller receives two post requests, this is why it creates two objects, I think the reason, is that two submits happen:
one by the form that is submitted and the other one by the ajax request inside your $('#link_url').preview(... code.

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